Advertisements
Advertisements
प्रश्न
Use your brain power!
How is the air that we inhale purified in our body?
Advertisements
उत्तर
There are tiny, fine hair-like outgrowths called cilia inside the nose from where the air passes inside. Larger dust particles get caught in these hairs. The air going inside the trachea thus gets filtered. There is also a layer of a sticky substance called mucous. The dust and smoke particles stick to the mucous. Thus, the air that we inhale gets purified before it reaches the lungs.
संबंधित प्रश्न
Name the following:
The artery which carries deoxygenated blood.
Match the items given in Column A with the most appropriate ones in Column B and REWRITE the correct matching pairs :
Column A Column B
(i) Cranial nerves Testosterone
(ii) Leydig cells Natural reflex
(iii) Acetylcholine 12 pairs
(iv) Spinal nerves Prolactin
(v) Sneezing Neurotransmitter
- 18 pairs
- 31 pairs
- Conditioned reflex
Find the odd one out.
Why does the left ventricle possess a thicker wall than the right ventricle?
Fill in the blanks with suitable words given below:
The blood loaded with carbon dioxide from the body comes into the ______ of the heart.
How many litres of blood does an adult human body have?
Why is circulatory system also known as transport system?
All the waste products of the body are excreted through the circulatory system.
Agranulocytes are about ______ % of total WBCs.
Granulocytes are also known as ____________.
